CN108340541B - Rapid forming method for RPP (resilient polypropylene) automobile interior and exterior trim plastic part - Google Patents
Rapid forming method for RPP (resilient polypropylene) automobile interior and exterior trim plastic part Download PDFInfo
- Publication number
- CN108340541B CN108340541B CN201711428761.7A CN201711428761A CN108340541B CN 108340541 B CN108340541 B CN 108340541B CN 201711428761 A CN201711428761 A CN 201711428761A CN 108340541 B CN108340541 B CN 108340541B
- Authority
- CN
- China
- Prior art keywords
- silica gel
- prototype
- sample
- rpp
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3807—Resin-bonded materials, e.g. inorganic particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention discloses a rapid forming method of RPP automobile interior and exterior plastic parts, which comprises the steps of 1, machining a sample piece through CNC, 2, manufacturing textures through 3D printing or etching, 3, manufacturing a prototype piece through cladding and bonding of a sample leather, 4, manufacturing a mold by using silica gel, taking the prototype piece out of the mold to obtain a mold cavity, and 5, casting and forming plastic in the mold cavity to obtain the automobile interior and exterior parts with the same appearance shape as the prototype piece. The production steps are quick and effective, the surface of the automobile part can embody specific customized textures, and the novel quick forming requirements of the sample car/the display car can be met on the appearance structure, the size precision and the performance of the product.
Description
Technical Field
The invention relates to the technical field of automobile interior and exterior trim parts, in particular to a rapid forming method of an RPP automobile interior and exterior trim plastic part.
Background
With the increasing perfection of the current whole vehicle development process, the requirements on rapid forming parts of sample vehicles and exhibition vehicles are higher and higher, and the traditional processes of spraying leather-pattern paint, PVC coating and the like cannot meet the requirements in appearance and cost. Therefore, how to manufacture RPP parts with a product size structure and appearance within a time and cost control range is becoming a technical problem to be solved by various host factories and design companies.
Disclosure of Invention
In view of the above, the present invention is directed to the defects existing in the prior art, and the main object of the present invention is to provide a method for rapidly forming an RPP automotive interior and exterior plastic part, which can embody a specific customized texture on the surface of an automotive part, and can satisfy the new rapid forming requirements of a prototype car/exhibit car in terms of the appearance structure, the dimensional accuracy and the performance of the product.
In order to achieve the purpose, the invention adopts the following technical scheme:
a rapid forming method of RPP automotive interior and exterior plastic parts comprises the following steps
Step (1), sample preparation: according to the 3D data of the product, manufacturing a required model of an ABS engineering plastic block or a substitute wood by CNC (computerized numerical control) processing equipment to obtain a CNC sample;
step (2), texture preparation: one method is to print out the needed simulated three-dimensional texture by a 3D printer, and then copy the texture by using colloid to obtain a sample skin; the other method is to directly etch the texture on the metal plate and then use the skin process to make the sample skin with the texture;
step (3), manufacturing a prototype: coating the sample skin on the surface of the sample piece in the step (1) according to the dermatoglyph region and the position definition to prepare a prototype piece;
step (4), manufacturing a die: fixing the prototype part in a box body, pouring colloid into the box body, taking out the prototype part after the colloid is solidified to form a rubber mold, and taking out a cavity left after the prototype part is taken out as a mold cavity;
step (5), casting the automobile internal and external ornaments: injecting the injection molding material into a silica gel mold, and manufacturing the automobile interior and exterior part with the same appearance shape as the prototype part through a defoaming and solidifying process.
Compared with the prior art, the method has obvious advantages and beneficial effects, and concretely, according to the technical scheme, the ABS engineering plastics are milled through CNC (computer numerical control) in the step 1 or the samples are made of wood substitutes, the texture is made through 3D printing or etching in the step 2, the prototype piece is made through cladding and bonding of the prototype leather in the step 3, the mold is made through silica gel in the step 4, the prototype piece is taken out of the mold to obtain the mold cavity, and the plastic is cast and molded in the mold cavity in the step 5, so that the automobile interior and exterior part with the appearance shape consistent with that of the prototype piece is obtained. The plastic mold replaces the traditional steel section mold, so that the manufacturing time of the mold is greatly shortened, compared with the traditional process of forming textures by laser engraving of the steel section mold, the method directly adopts the 3D printing and metal plate etching technology to reproduce the sample skin, and the sample skin is quickly coated on the sample piece obtained in the step 1 through the skin technology, so that the process is simple, the production can be quickly copied, the production steps are quick and effective, the specific customized textures can be embodied on the surface of the automobile part, and the novel quick forming requirements of the sample vehicle/display vehicle can be met on the appearance structure, the size precision and the performance of the product.
The present invention will be described in detail with reference to specific embodiments in order to more clearly illustrate the structural features and effects of the present invention.
Detailed Description
The invention discloses a rapid forming method of RPP (resilient mounting plate) automobile interior and exterior plastic parts, which can be used for producing textured rapid forming parts, and the parts can be subjected to post-treatment technologies such as subsequent paint spraying and coating, so that a sample car or an exhibition car can embody the design intention of a designer, and a host factory is helped to shorten the research and development period and cost.
The production method of the present invention comprises the following steps.
Step (1), sample preparation: according to the 3D data of the product, manufacturing a required model of an ABS engineering plastic block or a substitute wood by CNC (computerized numerical control) processing equipment to obtain a CNC sample;
step (2), texture preparation: one method is to print out the needed simulated three-dimensional texture by a 3D printer, and then copy the texture by using colloid to obtain a sample skin; the other method is to directly etch the texture on the metal plate and then use the skin process to make the sample skin with the texture;
step (3), manufacturing a prototype: coating the sample skin on the surface of the sample piece in the step (1) according to the dermatoglyph region and the position definition to prepare a prototype piece;
step (4), manufacturing a die: fixing the prototype part in a box body, pouring colloid into the box body, taking out the prototype part after the colloid is solidified to form a rubber mold, and taking out a cavity left after the prototype part is taken out as a mold cavity;
step (5), casting the automobile internal and external ornaments: injecting the injection molding material into a silica gel mold, and manufacturing the automobile interior and exterior part with the same appearance shape as the prototype part through a defoaming and solidifying process.
In the step (1), the material block is preferably made of ABS engineering plastic, and the ABS material is synthesized by three chemical monomers of acrylonitrile-butadiene-styrene. Each monomer has different properties: acrylonitrile has high strength, thermal stability and chemical stability, butadiene has toughness and impact resistance, and styrene has easy processing, high smoothness and high strength. From the viewpoint of morphology, ABS is amorphous material. The polymerization of the three monomers produces a terpolymer having two phases, one being a continuous phase of styrene-acrylonitrile and the other being a dispersed phase of polybutadiene rubber. The properties of ABS depend mainly on the ratio of the three monomers and the molecular structure in the two phases. This allows great flexibility in product design and thus creates hundreds of different qualities of ABS material on the market. These different quality materials provide different properties such as moderate to high impact resistance, low to high smoothness and high temperature distortion characteristics. ABS materials have very strong workability, appearance characteristics, low creep and excellent dimensional stability and very high impact strength. The material is suitable for manufacturing automobile instrument panels, automobile door inner and outer decorative plates, reflector boxes, wheel covers and the like.
In the step (2), the colloid is preferably silica gel, and the silica gel has elasticity and flexibility and is used for manufacturing a mould to completely copy texture details.
In the step (3), a binder is arranged between the sample leather and the sample piece, the binder can be soft polyurethane resin glue or polyurethane glue, but epoxy resin glue, phenyl glue and the like are preferably not adopted, because the epoxy resin glue can be used only by blending, and the surface is afraid of humidity and is easy to age; the phenyl colloidal benzene is harmful to human body and is not suitable for automobile parts. The specific method for manufacturing the prototype part is preferably as follows: firstly, sticking alcohol on a brush to clean the surface of a sample, then coating a thin layer of soft polyurethane resin glue on the surface to be attached, uniformly spreading the soft polyurethane resin glue, and naturally drying for 3-5 minutes; and after the soft polyurethane resin adhesive is completely air-dried, sticking the sample skin, forcibly compacting, and finally heating by using a blowing cylinder for 30-60s to ensure that the sample skin is uniformly heated and then is bonded together.
In the step (4), the box body is a silica gel box, the colloid is silica gel, and the gel mold is a silica gel mold. In this embodiment, the silicone mold material is composed of silicone, a silicone curing agent, and silicone oil. The molding method of the silica gel mold comprises the following steps of weighing raw materials by weight, 100 parts of silica gel, 120 parts of silica gel curing agent, 3-3.5 parts of silica gel curing agent and 0.2-0.4 part of silicone oil; pouring the raw materials into a plastic box body, uniformly mixing, standing for 2-5 minutes, discharging bubbles for 1-3 minutes under negative pressure, placing a prototype before curing, coating a release agent on the surface of the prototype, and taking out the prototype after curing the silica gel to form the silica gel film.
In the step (5), the concrete method for casting the interior and exterior trim parts of the automobile is that two or more than two liquid monomers or prepolymers are respectively added into a mixing head according to a certain proportion, are uniformly mixed under pressure, are immediately injected into a closed die, and are polymerized and cured in the die to form a product.
On the basis of the steps, the treatment processes of paint spraying and coating can be further added, so that the following steps are added:
and (6) spraying paint on the inner and outer ornaments of the automobile, and spraying different colors according to the interior design style of the automobile.
And (7) coating the automobile interior and exterior trim coatings with a waterproof layer, an anti-UV layer and the like according to requirements.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (8)
1. A rapid forming method of RPP automotive interior and exterior plastic parts is characterized in that: comprises the following steps
Step (1), sample preparation: according to the 3D data of the product, manufacturing a required model of an ABS engineering plastic block or a substitute wood by CNC (computerized numerical control) processing equipment to obtain a CNC sample;
step (2), texture preparation: one method is to print out the needed simulated three-dimensional texture by a 3D printer, and then copy the texture by using colloid to obtain a sample skin; the other method is to directly etch the texture on the metal plate and then use the skin process to make the sample skin with the texture;
step (3), manufacturing a prototype: coating the sample skin on the surface of the sample piece in the step (1) according to the dermatoglyph region and the position positioning to prepare a prototype piece;
step (4), manufacturing a die: pouring colloid into the box body, fixing the prototype part in the box body, taking out the prototype part after the colloid is solidified to form a rubber mold, and taking out a cavity left after the prototype part is taken out as a mold cavity;
step (5), casting the automobile interior and exterior decoration parts: injecting the injection molding material into a silica gel mold, preparing the automobile interior and exterior part with the same appearance shape as the prototype part through a defoaming and solidifying process, and pouring the automobile interior and exterior part by respectively adding two or more than two liquid monomers or prepolymers into a mixing head according to a certain proportion, uniformly mixing under pressurization, immediately injecting into a closed mold, carrying out polymerization and solidification in the mold, and shaping to obtain a product.
2. The method of rapidly forming an RPP automotive interior and exterior plastic part according to claim 1, wherein: in the step (2), the colloid is silica gel.
3. The method of rapidly forming an RPP automotive interior and exterior plastic part according to claim 1, wherein: in the step (3), a bonding agent is arranged between the sample leather and the sample piece.
4. The method of rapidly forming an RPP automotive interior and exterior trim plastic part according to claim 3, wherein: the binder is soft polyurethane resin glue.
5. The method of rapidly forming an RPP automotive interior and exterior trim plastic part according to claim 3, wherein: the method for manufacturing the prototype part comprises the steps of firstly using a brush to stick alcohol to clean the surface of the prototype part, then coating a thin layer of soft polyurethane resin glue on the surface to be attached, uniformly spreading the soft polyurethane resin glue, and naturally drying for 3-5 minutes; and after the soft polyurethane resin adhesive is completely air-dried, sticking the sample skin, forcibly compacting, and finally heating by using a blowing cylinder for 30-60s to ensure that the sample skin is uniformly heated and then is bonded together.
6. The method of rapidly forming an RPP automotive interior and exterior plastic part according to claim 1, wherein: in the step (4), the box body is a silica gel box, the colloid is silica gel, and the gel mold is a silica gel mold.
7. The method of rapidly forming an RPP automotive interior and exterior trim plastic part according to claim 6, wherein: in the step (4), the silica gel mold material is composed of silica gel, a silica gel curing agent and silicone oil.
8. The method of rapidly forming an RPP automotive interior/exterior plastic part according to claim 7, wherein: the molding method of the silica gel mold comprises the following steps of weighing raw materials by weight, 100 parts of silica gel, 120 parts of silica gel curing agent, 3-3.5 parts of silica gel curing agent and 0.2-0.4 part of silicone oil; pouring the raw materials into a box body, uniformly mixing, standing for 2-5 minutes, discharging bubbles for 1-3 minutes under negative pressure, placing a prototype before curing, coating a release agent on the surface of the prototype, and taking out the prototype after curing the silica gel to form the silica gel film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711428761.7A CN108340541B (en) | 2017-12-26 | 2017-12-26 | Rapid forming method for RPP (resilient polypropylene) automobile interior and exterior trim plastic part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711428761.7A CN108340541B (en) | 2017-12-26 | 2017-12-26 | Rapid forming method for RPP (resilient polypropylene) automobile interior and exterior trim plastic part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108340541A CN108340541A (en) | 2018-07-31 |
| CN108340541B true CN108340541B (en) | 2020-02-21 |
Family
ID=62962673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711428761.7A Active CN108340541B (en) | 2017-12-26 | 2017-12-26 | Rapid forming method for RPP (resilient polypropylene) automobile interior and exterior trim plastic part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108340541B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171102B (en) * | 2019-02-28 | 2021-07-16 | 郭礼宁 | Rapid molding process for automobile part sample |
| CN111673956A (en) * | 2020-06-17 | 2020-09-18 | 模德模具(苏州工业园区)有限公司 | Method for processing and manufacturing simulated suture of pool plastic skin |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201009678D0 (en) * | 2010-06-09 | 2010-07-21 | Vestas Wind Sys As | Method for producing a wind turbine component using a water based coating compound |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597294A (en) * | 2004-07-29 | 2005-03-23 | 周克正 | Manufacturing method of automobile inner decorative article |
| CN101007431A (en) * | 2007-01-26 | 2007-08-01 | 山东大学 | Processing technology of silicon rubber mould |
| CN103372763A (en) * | 2012-04-28 | 2013-10-30 | 兰州理工大学 | Zinc alloy mold rapid manufacture process based on rapid prototyping and zinc alloy mold material |
| CN102773408B (en) * | 2012-06-18 | 2014-07-23 | 杭州先临快速成型技术有限公司 | Method for rapidly manufacturing low-temperature alloy pouring mould by high-temperature resistant silicon rubber |
| CN103241048A (en) * | 2013-04-26 | 2013-08-14 | 长城汽车股份有限公司 | Method for quickly forming textures on surface of workpiece |
-
2017
- 2017-12-26 CN CN201711428761.7A patent/CN108340541B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201009678D0 (en) * | 2010-06-09 | 2010-07-21 | Vestas Wind Sys As | Method for producing a wind turbine component using a water based coating compound |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108340541A (en) | 2018-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Udroiu et al. | Polyjet technology applications for rapid tooling | |
| CN105153638A (en) | Fiber reinforced plastic and method for producing sculpture from fiber reinforced plastic | |
| CN108340541B (en) | Rapid forming method for RPP (resilient polypropylene) automobile interior and exterior trim plastic part | |
| CN104400879A (en) | Method for manufacturing 3D (3-Dimensional)-molded ceramic mold | |
| CN101537684A (en) | Polyurethane foam forming mould and manufacturing method of mould cavities | |
| WO2006010321A1 (en) | A method of manufacturing automotive interior parts | |
| CN102529098B (en) | Method for manufacturing vehicle sign by in-mold decoration technology | |
| CN104626597A (en) | Manufacturing process of automotive interiors | |
| CN101954703A (en) | Injection molding method for in-mold ornament | |
| US4086118A (en) | Rigid composite articles and a method for their manufacture | |
| CN103752766B (en) | A kind of method for fast mfg of resin casting mould | |
| RU2534169C2 (en) | Method of manufacturing metal-polymer press-moulds | |
| CN203567392U (en) | Composite type transfer printing film | |
| CN106623781B (en) | Wax mold rapid forming process for statue casting | |
| ATE502315T1 (en) | METHOD FOR PRODUCING A PHOTOCHROMIC PLASTIC ARTICLE | |
| CN109014035B (en) | Method for rapidly preparing wax mold for precision casting by adopting gypsum and silica gel combination mode | |
| CN106738980A (en) | The technique that a kind of utilization resin or plastic production sight sugar are drawn | |
| CN104669510B (en) | Forming process of automobile interior and exterior trim and low-pressure pouring forming process of interior and exterior trim samples | |
| CN106584895A (en) | Production technological method of colorful tire | |
| CN107249840A (en) | The method and sulfurizing mould and vehicle tyre of a kind of decorative pattern section for the casting sulfurizing mould for being used to produce the segmentation for vehicle tyre | |
| CN101104304A (en) | Method for making product pattern | |
| CN113183375A (en) | Method for manufacturing crystal ecological plate containing three-dimensional inner ornaments | |
| CN104626784A (en) | Composite transfer printing film | |
| JP2001225371A (en) | Coated/printed article of reinforced plastic molding and its production method | |
| CN106180564A (en) | A kind of precision casting process of foaming mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |